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Why Isodynamic? Contrary to a conventional dynamic driver, these transducers have a driving force distributed evenly over the whole area of their vibrating elements. The key feature of the RT2C-A and the RT2H-A is the membrane, which consists of Kapton film with a pattern of aluminum conductors. The conductors cover about 90% of the whole vibrating area. The membrane assembly is placed precisely between two rows of Neodymium and Barium Ferrite bar magnets. A larger membrane area provides higher power handling and substantially extended low-end cut-off frequency. The aluminum mounting flange, with flared waveguide, controls the frequency response and directivity of the tweeter. These tweeters are magnetically shielded and are extremely flat with a depth only 27mm including the mounting flange.
Specifications: • Power handling: 30 watts RMS/60 watts max • Nominal impedance: 8 ohms • DC resistance: 7 ohms • Frequency range: 1,700-25,000 Hz • SPL: 94 dB 1W/1m • RT2C-A Dimensions: Overall diameter: 7", Cutout diameter: 6-3/16", Depth: 3/4" • RT2H-A • Dimensions: Overall diameter: 7-1/8" x 6-5/8", Cutout diameter: 6-1/8" x 6-1/8", Depth: 1-5/8".
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